Sigmund rosenblum



.IIS

UNITEIS STKTE S PATENT OFFICE.

SIGMUND ROSENBLUM, OF KEYNSHAM, ASSIGNOR TOIRI-EDRICH LUDWIG PBARTELT OFCORSTON, ENGLAND.

PROCESS OF MAKING AND PURIFYING SOAP.

SEECIFIGATION forming part Of Letters Patent NO. 539,547, dated May 21,1895.

Application filed September 27,1894. Serial No. 524,294- (No specimens.)

To all whom it may concern:

Be it known that I, SIGMUND ROSENBLUM, of Longton House, Keynsham, nearBristol, England,have invented certain new and use ful Improvements inthe Manufacture of Soap,

of which the following is a specification.

The object of this invention is to produce a soap of peculiar cleansingand sanitary properties, and which will have no detrimental elfect onthe texture of the clothes or other materials with which it is employed.

In carrying out this invention I employ as a lgasis for my improvedsoap, any kind of completely s aponified fat ty matter. It is desii'ablein view of sfibs'fiuent treatment that 'this basis matter shall containaless percentage of water than is usual, that is to say, the quantity ofwater employed in the course of saponification shall be less than thatusually employed. To this completely saponi tied matter'or soap, whilein a heated state, say, at a temperature of about 50 to 60 centigrade, Iadd a watery solution of an alkaline peroxide which solution I stir intothehbt s dapf 'lhe alkaline peroxide which I prefer to use for variousreasons is peroxide of sodium (Na O -The amount ofwaterused forthe'sol'utioil should be such as to make up for the lesser quantity ofwater used in the manufacture provided it is always enough to completelydissolve the peroxide. I prefer for obvious reasons,.to make thisaddition during the course of manufacture, when the basis soap ispractically completed, that is to say, when it is neutral, or onlyslightly alkaline, and

when the whole of the fatty matters are completely saponified at whichtime, under ordinary circumstances, itwould be allowed to the clothes,to get the dirt out, isentirely obviated.

The improved soap has also the property of thoroughly disinfecting anyclothes with which it is used, thus making it a valuable sanitary agentin the laundry.

I may here remark that although I have particularly mentioned sodiumperoxide as the alkaline peroxide,I do not confine myself to suchmaterial, as other alkaline peroxides may also be employed for thepurposes of my invention; neither do I wish to confine myself to theexact proportions given, as these may be varied, to a less or greaterextent, according to the material employed.

It will be obvious that an alkaline peroxide may be used in themanufacture of the soap, that is to say, for the saponification of thefatty matter but if so used, an excess in or about the proportions givenmust be added,

in order to produce the bleaching effect, and

give the cleansing and disinfecting properties before mentioned.

What I claim is- 1. The process of bleaching or purifying soap whichconsists in adding to a basis of completely saponified fatty matter analkaline peroxide, as set forth.

2. The process of producing soap as herein described, and consisting ipadding to a melted soap an alkaline peroxide in or about the proportionsgiven and in a state of solution as set forth.

3.v The process of producing soap, as herein described, and consistingin adding to soap, during the course of manufacture, and when the wholeof the fatty matters have become completely saponified, an alkalineperoxide,

in or about the proportions given, and in a state of solution, as setforth.

tral, or but slightly alkaline melted'completely saponified fatty matteran alkaline peroxide in a state of solution, as set forth.

5. The process of producing soap as herein described, and consisting inmaking a soap' ture of between 50 to 60 cent-igrade, and then addingwith continuous agitation, a so- 10 lution of an alkaline peroxide, asset forth.

I SIGMUND ROSENBLUM.

Witnesses:

LIONEL A. WILSON, A. E. A. WHERAT.

